Facelessuser Soup Sieve vulnerabilities
2 vulnerabilities
Known vulnerabilities in Facelessuser Soup Sieve, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.
PrioritiseCVE-2026-49476facelessuser · soupsieve +37 moreSoup Sieve: Memory Exhaustion via Large Comma-Separated Selector Lists in soupsieveSoup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve allocates unbounded memory when compiling large comma-separated selector lists, allowing an attacker who can supply a crafted selector string to soupsieve.compile() or Beautiful Soup .select() / .select_one() to allocate hundreds of megabytes of heap memory from a relatively small input and cause denial of service. This issue is fixed in version 2.8.4.CVSS7.5HighEPSS0.64%PrioritiseCVE-2026-49477facelessuser · soupsieve +37 moreSoup Sieve: Regular Expression Denial of Service (ReDoS) in soupsieve Selector ParserSoup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. Prior to 2.8.4, the CSS selector parser in soupsieve contains a regular expression vulnerable to catastrophic backtracking when processing an attribute selector with an unterminated quoted value in soupsieve/css_parser.py, allowing an attacker who can supply untrusted CSS selector strings to soupsieve.compile() or Beautiful Soup .select() / .select_one() to cause CPU exhaustion and denial of service. This issue is fixed in version 2.8.4.CVSS7.5HighEPSS0.64%